<?php /*arsort($show_time);*/ foreach($show_time AS $el=>$le):?>

<tr>                          
    <td width="75%"><?php echo str_replace('-', '/', $el)?></td>
    <td width="25%" style="text-align: center;"><?php echo number_format($le, '0', '', '.')?></td>                                     
</tr>
<?php endforeach;?>  